ExtensionCache

A run-to-run cache, where the host offers one.

Exists so a source can avoid re-fetching an unchanged sub-resource — show notes, a transcript page — across scheduled runs. Values are strings; a source that wants structure serialises it.

Methods

get()

get(key: string): Promise<string | null>;

The cached value, or null on a miss.

Parameters

Parameter	Type
key	string

Returns

Promise<string | null>

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put()

put(
   key: string,
   value: string,
ttlSeconds: number): Promise<void>;

Store a value for at most ttlSeconds. The host may shorten it.

Parameters

Parameter	Type
key	string
value	string
ttlSeconds	number

Returns

Promise<void>